Factors related to microcatheter passage through the trans-cell approach using a low-profile visualized intraluminal support device: an in-vitro study
Autor: | Yoshitaka Kurosaki, Akira Handa, Sen Yamagata, Hiroyuki Ikeda, Masaki Chin, Masanori Kinosada |
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Rok vydání: | 2022 |
Předmět: |
Materials science
Radiological and Ultrasound Technology Aneurysm neck Intracranial Aneurysm medicine.disease Embolization Therapeutic Blood Vessel Prosthesis Cerebral Angiography 030218 nuclear medicine & medical imaging 03 medical and health sciences Treatment Outcome 0302 clinical medicine Aneurysm medicine Humans Inner diameter In vitro study Stents Radiology Nuclear Medicine and imaging Neurology (clinical) 030217 neurology & neurosurgery Biomedical engineering Coil embolization |
Zdroj: | Journal of Neuroradiology. 49:87-93 |
ISSN: | 0150-9861 |
Popis: | The trans-cell approach using a low-profile visualized intraluminal support (LVIS) device is sometimes used for aneurysm coil embolization. However, factors related to microcatheter passage remain uninvestigated. We aimed to examine in-vitro factors related to microcatheter passage using the trans-cell approach with an LVIS.Silicone vessel models (inner diameter, 4 mm) were created with different bend segments and a 4-mm hole assuming an aneurysm neck on the side of the greater curvature. The LVIS Blue (4.5 × 32 mm) was deployed at the bend segment, and passability on the trans-cell surface was evaluated by passing the microcatheter along the micro guidewire. A total of 800 passage experiments were performed using two types of microcatheter, ten types of silicone vessel, four cell widths, five cells with the same LVIS device, and two micro guidewire directions in the aneurysm.The Headway Duo microcatheter (35.5%, 142/400) tended to have better passability compared with the Headway 17 microcatheter (29.3%, 117/400) (p = 0.070). As the cell width and angle between the trans-cell surface and microcatheter direction increased, passability significantly increased (p = 0.027 and p 0.001, respectively). There was no significant difference in passability when the micro guidewire was directed to the proximal side versus the distal side (p = 0.45).A large cell width and an obtuse angle between the trans-cell surface and microcatheter direction facilitated good passability. Although statistically marginal, microcatheters with small ledges and small tips had relatively good passability. |
Databáze: | OpenAIRE |
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